Benzonatate Use in Chronic Kidney Disease
Benzonatate (Tessalon) has no labeled CKD-specific contraindication and does not provide renal-dose adjustment instructions in the FDA-approved prescribing information. [1]
Medication Selection Algorithm
Benzonatate is used for symptomatic relief of cough when hypersensitivity to benzonatate or related compounds is absent. [1]
Dosing in Chronic Kidney Disease
The FDA-approved prescribing information provides dosing by age and does not specify dose reduction based on renal function. [1]
Safety Considerations Relevant to CKD
Benzonatate adverse effects include central nervous system effects such as sedation, headache, dizziness, mental confusion, and visual hallucinations. [1]
Overdose Risk Management
Overdose from benzonatate can cause death, particularly in children, and overdose effects have been reported within 15 to 20 minutes. [1] Benzonatate labeling specifies a maximum single dose of 200 mg and a maximum total daily dose of 600 mg. [1]
Practical Use Constraints
Benzonatate capsules should be swallowed whole to avoid oropharyngeal anesthesia and choking. [1]
Common Pitfalls to Avoid
Exceeding the labeled maximum single dose of 200 mg and maximum total daily dose of 600 mg should be avoided. [1] Benzonatate capsules should not be chewed, dissolved, or crushed to avoid rapid oropharyngeal anesthesia and airway compromise. [1]